FAIR VALUE MEASUREMENTS AFS (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Available for Sale:
Amortized Cost	$ 176,129	$ 185,290
Fair Value	177,292	183,289
Unrealized Gains	1,163	28
Unrealized Losses		(2,029)
Municipal bonds
Available for Sale:
Amortized Cost		6,173
Fair Value		5,123
Unrealized Losses		(1,050)
Variable rate demand notes
Available for Sale:
Amortized Cost	25,845	20,195
Fair Value	25,845	20,195
Corporate bonds
Available for Sale:
Amortized Cost	139,803	149,795
Fair Value	140,797	148,863
Unrealized Gains	994
Unrealized Losses		(932)
Government securities
Available for Sale:
Amortized Cost	3,503	2,979
Fair Value	3,588	3,007
Unrealized Gains	85	28
Certificates of deposit
Available for Sale:
Amortized Cost	6,978	6,148
Fair Value	7,062	6,101
Unrealized Gains	$ 84
Unrealized Losses		$ (47)

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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